Add fileEndOffset to Class.

runtime/vm/kernel_binary_flowgraph.h

Index: runtime/vm/kernel_binary_flowgraph.h
diff --git a/runtime/vm/kernel_binary_flowgraph.h b/runtime/vm/kernel_binary_flowgraph.h
index c645744049f19ba6b9746fdb7a34a5edf784a083..9d7f15ce26fb6c1bf39e59b9385ba6f08dcf7f94 100644
--- a/runtime/vm/kernel_binary_flowgraph.h
+++ b/runtime/vm/kernel_binary_flowgraph.h
@@ -1198,6 +1198,7 @@ class ClassHelper {
     kStart,  // tag.
     kCanonicalName,
     kPosition,
+    kEndPosition,
     kIsAbstract,
     kNameIndex,
     kSourceUriIndex,
@@ -1238,6 +1239,9 @@ class ClassHelper {
       case kPosition:
         position_ = builder_->ReadPosition(false);  // read position.
         if (++next_read_ == field) return;
+      case kEndPosition:
+        end_position_ = builder_->ReadPosition();  // read end position.
+        if (++next_read_ == field) return;
       case kIsAbstract:
         is_abstract_ = builder_->ReadBool();  // read is_abstract.
         if (++next_read_ == field) return;
@@ -1314,6 +1318,7 @@ class ClassHelper {
 
   NameIndex canonical_name_;
   TokenPosition position_;
+  TokenPosition end_position_;
   bool is_abstract_;
   StringIndex name_index_;
   intptr_t source_uri_index_;